洱源丛枝瑚杀虫活性成分研究  

Insecticidal activity of chemical components from Ramaria eryuanensis

作　　者：王大浩[1,2] 高锦明[3] 冯俊涛[1] 张兴[1] 

机构地区：[1]西北农林科技大学无公害农药研究服务中心,杨凌712100 [2]宝鸡文理学院化学化工系,宝鸡721013 [3]西北农林科技大学理学院,杨凌712100

出　　处：《植物保护》2010年第5期110-112,共3页Plant Protection

基　　金："十五"国家科技攻关项目(2002BA516A04);宝鸡文理学院重点科研项目(ZK2552)

摘　　要：洱源丛枝瑚(Ramaria eryuanensis)石油醚萃取物经过柱层析得到单体化合物B8,该化合物对小菜蛾3龄幼虫72 h的LC50为3.375 7 mg/mL。经FAB-MS、1HNMR、13CNMR及DEPT等波谱鉴定,并与文献值对照,确定其为麦角甾-7,22-二烯-3β,5α,6β-三醇。The petroleum ether extract of Ramaria eryuanensis was isolated and purified through normal pressure silica gel pillar chromatography, and one compound was obtained. The LC50 value of the compound against the 3rd instar larvae of Plutella xylostella in 72 h was 3. 375 7 mg/mL. The molecular structure was identified by FAB- MS, 1HNMR, 13 CNMR and DEPT as ergosta-7,22-dien-3β, 5α, 6β-triol.

关 键 词：洱源丛枝瑚 麦角甾-7 22-二烯-3 β 5α  6β-三醇 杀虫活性 

分 类 号：S482.39[农业科学—农药学]